Well if it isnt sparking it definitely has something to do with the ignition. If the magnet on the hub has the right pole exposed then I assume the 3w ign would work as long as you can mount the switch. Try waving the pulse switch around the magnet on the hub, with a plug in the boot and earthed and the ignition attached to a battery, also check your ign battery's and switch's.

How things there is it peaceful?